[INFO] fetching crate serialio 0.1.2...
[INFO] testing serialio-0.1.2 against 1.55.0 for beta-1.56-1
[INFO] extracting crate serialio 0.1.2 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate serialio 0.1.2 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-7/source/.cargo/config
[INFO] started tweaking crates.io crate serialio 0.1.2
[INFO] finished tweaking crates.io crate serialio 0.1.2
[INFO] tweaked toml for crates.io crate serialio 0.1.2 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cortex-m-semihosting v0.3.7
[INFO] [stderr]   Downloaded panic-semihosting v0.5.6
[INFO] [stderr]   Downloaded cortex-m-rt-macros v0.6.15
[INFO] [stderr]   Downloaded lsm303dlhc v0.2.0
[INFO] [stderr]   Downloaded l3gd20 v0.2.0
[INFO] [stderr]   Downloaded f3 v0.6.1
[INFO] [stderr]   Downloaded stm32f30x-hal v0.2.0
[INFO] [stderr]   Downloaded stm32f30x v0.7.1
[INFO] [stderr]   Downloaded cortex-m-rt v0.6.15
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 184e408d3519e1b6aa007830ea2a8c89b25c4802b008e0c41dc131f090c39b1b
[INFO] running `Command { std: "docker" "start" "-a" "184e408d3519e1b6aa007830ea2a8c89b25c4802b008e0c41dc131f090c39b1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "184e408d3519e1b6aa007830ea2a8c89b25c4802b008e0c41dc131f090c39b1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "184e408d3519e1b6aa007830ea2a8c89b25c4802b008e0c41dc131f090c39b1b", kill_on_drop: false }`
[INFO] [stdout] 184e408d3519e1b6aa007830ea2a8c89b25c4802b008e0c41dc131f090c39b1b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 22c659dba2c0bd3d859d41cdffef1c35ae5bbe799f827fdca68f598afc59992b
[INFO] running `Command { std: "docker" "start" "-a" "22c659dba2c0bd3d859d41cdffef1c35ae5bbe799f827fdca68f598afc59992b", kill_on_drop: false }`
[INFO] [stderr]    Compiling nb v1.0.0
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling nb v0.1.3
[INFO] [stderr]    Compiling embedded-hal v0.2.6
[INFO] [stderr]    Compiling serialio v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.36s
[INFO] running `Command { std: "docker" "inspect" "22c659dba2c0bd3d859d41cdffef1c35ae5bbe799f827fdca68f598afc59992b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22c659dba2c0bd3d859d41cdffef1c35ae5bbe799f827fdca68f598afc59992b", kill_on_drop: false }`
[INFO] [stdout] 22c659dba2c0bd3d859d41cdffef1c35ae5bbe799f827fdca68f598afc59992b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2bfe2a0e1590b14ec68910b2b75ed491484c2eaff9ab01a21dbbf4a9f90176a1
[INFO] running `Command { std: "docker" "start" "-a" "2bfe2a0e1590b14ec68910b2b75ed491484c2eaff9ab01a21dbbf4a9f90176a1", kill_on_drop: false }`
[INFO] [stderr]    Compiling vcell v0.1.3
[INFO] [stderr]    Compiling bitfield v0.13.2
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling cortex-m-rt v0.6.15
[INFO] [stderr]    Compiling stm32f30x v0.7.1
[INFO] [stderr]    Compiling aligned v0.2.0
[INFO] [stderr]    Compiling r0 v0.2.2
[INFO] [stderr]    Compiling cortex-m-semihosting v0.3.7
[INFO] [stderr]    Compiling f3 v0.6.1
[INFO] [stderr]    Compiling typenum v1.14.0
[INFO] [stderr]    Compiling cast v0.2.7
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.6.15
[INFO] [stderr]    Compiling volatile-register v0.2.1
[INFO] [stderr]    Compiling cortex-m v0.7.3
[INFO] [stderr]    Compiling panic-semihosting v0.5.6
[INFO] [stderr]    Compiling generic-array v0.12.4
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling generic-array v0.13.3
[INFO] [stderr]    Compiling generic-array v0.11.2
[INFO] [stderr]    Compiling lsm303dlhc v0.2.0
[INFO] [stderr]    Compiling l3gd20 v0.2.0
[INFO] [stderr]    Compiling as-slice v0.1.5
[INFO] [stderr]    Compiling aligned v0.3.5
[INFO] [stderr]    Compiling cortex-m v0.6.7
[INFO] [stderr]    Compiling cortex-m v0.5.11
[INFO] [stderr]    Compiling stm32f30x-hal v0.2.0
[INFO] [stderr]    Compiling serialio v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note: "cc" "-m64" "/opt/rustwide/target/debug/examples/format_output-a63b4bbce60d18ea.format_output.d3e359ac-cgu.0.rcgu.o" "/opt/rustwide/target/debug/examples/format_output-a63b4bbce60d18ea.1gskxf3xjces0rfy.rcgu.o" "-Wl,--as-needed" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/target/debug/build/cortex-m-rt-b02241c638dc424f/out" "-L" "/opt/rustwide/target/debug/build/f3-fe4017447cd748bb/out" "-L" "/opt/rustwide/target/debug/build/stm32f30x-52fee743706d1442/out" "-L" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libf3-5e0ab5151efe92f9.rlib" "/opt/rustwide/target/debug/deps/liblsm303dlhc-927d5d36d4c8642e.rlib" "/opt/rustwide/target/debug/deps/libl3gd20-30ae2fb9c00f37b4.rlib" "/opt/rustwide/target/debug/deps/libgeneric_array-c4e621821e7bc5e7.rlib" "/opt/rustwide/target/debug/deps/libserialio-5a3df955c692d04a.rlib" "/opt/rustwide/target/debug/deps/libstm32f30x_hal-9c8295392e83604b.rlib" "/opt/rustwide/target/debug/deps/libstm32f30x-567b2a3f27b72817.rlib" "/opt/rustwide/target/debug/deps/libcortex_m_rt-e0a7b05d55d4ff94.rlib" "/opt/rustwide/target/debug/deps/libr0-adfa625eb15f5578.rlib" "/opt/rustwide/target/debug/deps/libcast-18df35fa0f8dab04.rlib" "/opt/rustwide/target/debug/deps/libcortex_m-db2dfc0e2fb3120c.rlib" "/opt/rustwide/target/debug/deps/libcortex_m-824c8eb946e43554.rlib" "/opt/rustwide/target/debug/deps/libcortex_m-2398687638ec2f5c.rlib" "/opt/rustwide/target/debug/deps/libembedded_hal-96ef3a1e22763fda.rlib" "/opt/rustwide/target/debug/deps/libvoid-7e2bd849a14007b8.rlib" "/opt/rustwide/target/debug/deps/libnb-e34a288949eb7a33.rlib" "/opt/rustwide/target/debug/deps/libnb-bff67f4482e2acec.rlib" "/opt/rustwide/target/debug/deps/libaligned-eb8289512d6f462c.rlib" "/opt/rustwide/target/debug/deps/libas_slice-b9800d444170ffd6.rlib" "/opt/rustwide/target/debug/deps/libstable_deref_trait-91843525d04174e2.rlib" "/opt/rustwide/target/debug/deps/libgeneric_array-91c5f4665ae42a76.rlib" "/opt/rustwide/target/debug/deps/libgeneric_array-150d0e2ba9c6557c.rlib" "/opt/rustwide/target/debug/deps/libgeneric_array-10e36b50f61c8ad9.rlib" "/opt/rustwide/target/debug/deps/libtypenum-4b6220ca5cb05859.rlib" "/opt/rustwide/target/debug/deps/libvolatile_register-4728dd56a2f0c625.rlib" "/opt/rustwide/target/debug/deps/libvcell-dd1594a1442bbf9e.rlib" "/opt/rustwide/target/debug/deps/libbare_metal-c2141a5cc5d32c5d.rlib" "/opt/rustwide/target/debug/deps/libaligned-93f35c25a340f96d.rlib" "/opt/rustwide/target/debug/deps/libpanic_semihosting-81cba8b3321d2650.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-008055cc7d873802.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-06f01ac2578bda94.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-f9a3c3274a1835e0.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-d4cbb754ee9f4daa.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-95c14e1c1e3ebcc4.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-d489f0ca872880cc.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-75f07df0b18fea39.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd_detect-0c35b278736219a2.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-e530649c9a06e3c6.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-6b148909d375a785.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-cd15fa647f4775d1.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-74be3a703f788ba2.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-8f2c5b445c28b2e3.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-8480e85e0be96197.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-ac23a75f6f42004e.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-557ba8776e04d182.rlib" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-4beb03d03503c439.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-dd7db1bec6909f24.rlib" "-Wl,-Bdynamic" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc" "-Wl,--eh-frame-hdr" "-Wl,-znoexecstack" "-L" "/opt/rustwide/rustup-home/toolchains/1.55.0-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/examples/format_output-a63b4bbce60d18ea" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs"
[INFO] [stdout]   = note: /usr/bin/ld: /opt/rustwide/target/debug/examples/format_output-a63b4bbce60d18ea.format_output.d3e359ac-cgu.0.rcgu.o: in function `cortex_m::register::primask::read':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/cortex-m-0.7.3/src/register/primask.rs:29: undefined reference to `__primask_r'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/examples/format_output-a63b4bbce60d18ea.format_output.d3e359ac-cgu.0.rcgu.o: in function `cortex_m::interrupt::enable':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/cortex-m-0.7.3/src/interrupt.rs:48: undefined reference to `__cpsie'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/examples/format_output-a63b4bbce60d18ea.format_output.d3e359ac-cgu.0.rcgu.o: in function `cortex_m::interrupt::disable':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/cortex-m-0.7.3/src/interrupt.rs:38: undefined reference to `__cpsid'
[INFO] [stdout]           /usr/bin/ld: /opt/rustwide/target/debug/examples/format_output-a63b4bbce60d18ea.format_output.d3e359ac-cgu.0.rcgu.o: in function `cortex_m::asm::bkpt':
[INFO] [stdout]           /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/cortex-m-0.7.3/src/asm.rs:15: undefined reference to `__bkpt'
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout]   = help: some `extern` functions couldn't be found; some native libraries may need to be installed or have their path specified
[INFO] [stdout]   = note: use the `-l` flag to specify native libraries to link
[INFO] [stdout]   = note: use the `cargo:rustc-link-lib` directive to specify the native libraries to link with Cargo (see https://doc.rust-lang.org/cargo/reference/build-scripts.html#cargorustc-link-libkindname)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `serialio` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "2bfe2a0e1590b14ec68910b2b75ed491484c2eaff9ab01a21dbbf4a9f90176a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2bfe2a0e1590b14ec68910b2b75ed491484c2eaff9ab01a21dbbf4a9f90176a1", kill_on_drop: false }`
[INFO] [stdout] 2bfe2a0e1590b14ec68910b2b75ed491484c2eaff9ab01a21dbbf4a9f90176a1